Ultrasonic‐Assisted Synthesis of Highly Defined Silver Nanodimers by Self‐Assembly for Improved Surface‐Enhanced Raman Spectroscopy. Issue 6 (21st January 2020)

• Record Type: Journal Article
• Authors: Zhang, Junfang; Gim, Soeun; Paris, Grigori; Dallabernardina, Pietro; Schmitt, Clemens N. Z.; Eickelmann, Stephan; Loeffler, Felix F.
• Is Part Of: Chemistry. Volume 26:Issue 6(2020)
• Page Start: 1243
• Page End: 1248
• Publication Date: 2020-01-21
• Subjects: aggregation -- nanodimers -- self-assembly -- surface-enhanced Raman spectroscopy -- ultrasonic-assisted synthesis; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201904518
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: Considerable research efforts have been devoted to surface‐enhanced Raman spectroscopy (SERS), due to its excellent performance in biosensing and imaging. Here, a novel and facile strategy for the fabrication of well‐defined and uniform nanodimers as SERS substrates is presented. By the assistance of ultrasound, the violent polyol process for particle generation becomes controllable, enabling the self‐assembly of nanostars to nanodimers. Moreover, the aggregation of nanodimers can be easily tuned by post‐ultrasonic treatment, which gives a sensitive substrate for SERS. Abstract : Made of nanostars : By the assistance of ultrasound, the violent polyol process for silver particle generation becomes controllable, enabling the self‐assembly of nanostars to nanodimers. Moreover, the aggregation of nanodimers can be easily tuned by post‐ultrasonic treatment, which gives a sensitive substrate for SERS.